__--These boxes are too heavy for me to carry.I 'll give you a hand __ them.( of ,to ,for ,by)该选那一个
问题描述：
__--These boxes are too heavy for me to carry.I 'll give you a hand __ them.( of ,to ,for ,by)
该选那一个
答
of
答
选of.
有个句型是:give sb a hand with(of)sth 还有个句型:give a hand to sb
而你给的句子中的them是指 these boxes,因此应该用第一种句型
答
It's so easy.We can only choose the preposition "to" among the four.